CVE-2026-30452 Missing authorization in n/a

Medium 6.5 Published 21 Apr 2026 Updated 22 Apr 2026

Low-privilege authenticated users can modify articles owned by higher-privilege users by manipulating article IDs during duplication.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-30452?

CVE-2026-30452 is a medium-severity missing authorization vulnerability in n/a, published on 21 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Textpattern CMS 4.9.0 contains a Broken Access Control vulnerability in the article management system that allows authenticated users with low privileges to modify articles owned by users with higher privileges. By manipulating the article ID parameter during the duplicate-and-save workflow in textpattern/include/txp_article.php, an attacker can bypass authorization checks and overwrite content belonging to other users.

Weakness: CWE-284

Which versions are affected by CVE-2026-30452?

It affects 1 product.

Products include Textpattern Textpattern.

How do I fix CVE-2026-30452?

No fix has been published for CVE-2026-30452 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-30452 being exploited?

There is no known exploitation of CVE-2026-30452 in the wild and no public exploit code.

Sources

Also known as GHSA-px9m-396q-mg36.